CVE-2024-38521: Hush Line is a free and open-source, anonymous-tip-line-as-a-service for organizations or individuals

Q: How do I fix CVE-2024-38521?

hush line: upgrade to 0.1.0. Exact commands for each OS are on this page.

Q: Is CVE-2024-38521 being exploited?

CVE-2024-38521 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-38521 affect?

CVE-2024-38521 affects hush line. Severity is high (CVSS 8.8). Hush Line is a free and open-source, anonymous-tip-line-as-a-service for organizations or individuals. There is a stored XSS in the Inbox. The input is displayed using the `safe` Jinja2 attribute, and thus not sanitized upon display. This i

Q: How urgent is CVE-2024-38521?

Priority 45/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2024-38521 is a high-severity flaw (CVSS 8.8) affecting hush line. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Hush Line is a free and open-source, anonymous-tip-line-as-a-service for organizations or individuals. There is a stored XSS in the Inbox. The input is displayed using the `safe` Jinja2 attribute, and thus not sanitized upon display. This issue has been patched in version 0.1.0.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-06-28
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: hushline

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-06-28 16:15 UTCPublished CVE record published
2026-06-17 07:40 UTCUpdated Record last modified

hushline hush line UPGRADE

Affected: < 0.1.0

Fixed in: 0.1.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy hush-line || rpm -q hush-line || hush-line --version

2. UPGRADE to 0.1.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade hush-line

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hush-line

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-38521?

hush line: upgrade to 0.1.0. Exact commands for each OS are on this page.

Is CVE-2024-38521 being exploited?

CVE-2024-38521 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-38521 affect?

CVE-2024-38521 affects hush line. Severity is high (CVSS 8.8). Hush Line is a free and open-source, anonymous-tip-line-as-a-service for organizations or individuals. There is a stored XSS in the Inbox. The input is displayed using the `safe` Jinja2 attribute, and thus not sanitized upon display. This i

How urgent is CVE-2024-38521?

Priority 45/100. High severity; Public exploit reference

Related CVEs

CVE-2024-38522 MEDIUM 6.3 UPGRADE Hush Line is a free and open-source, anonymous-tip-line-as-a-service for organizations or individuals

References

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